Katharine McPhee was recently photographed kissing a married man who isn't her husband.

D'oh.

According to E! News, the man in question is McPhee's former “Smash” director Michael Morris. The website has a picture of the pair playing tonsil hockey Sunday after having lunch at I Panini Di Ambra in Hollywood.

It apparently wasn't just one kiss, either. There were several. And they held hands as well.

Gross.

The 29-year-old former “American Idol” runner-up has been married to 47-year-old performer/producer Nick Cokas since 2008. Morris has been married to 44-year-old actress Mary McCormack since 2003. They are parents to 9-year-old Margaret, 6-year-old Rose and 2-year-old Lillian.

E! News reported McPhee didn't appear to be wearing her wedding ring during her outing with Morris. Neither celebrity has commented on the matter.

A friend of the couple's told Life & Style that McPhee and Cokas “have been separated for six months,” even though “Nick continues to co-manage her music.”